While RCMP charged a man with her death last week, officers hadn't found her body.

Police say they're still working to confirm the identity of the remains and an autopsy is anticipated early this week.

Shane Gregory Babitsch, 21, of Grande Prairie has been charged with first-degree murder.

His next court appearance is March 12 in Grande Prairie.

Police say they are continuing to investigate.

Officers had been searching the waste site since Feb. 11.

Mounties said in a news release last week that the search was "methodical and arduous," noting that they faced challenges such as cold weather, snow and dangers that included industrial and medical waste as well as toxic gasses.

They said their investigation was helped by the fact Johnstone's family and friends were quick to report her missing.